Trek 7000SHX freehub sticking

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kevm14
Posts: 15200
Joined: Wed Oct 23, 2013 10:28 pm

Trek 7000SHX freehub sticking

Post by kevm14 »

I mean the bike is 25 years old and has been through some things. Basically the freehub sticks and tries to turn the pedals but the tension comes from the bottom (as opposed to pedaling where it is along the top) so it stretches the derailleur and gets all wonky. Found a perfect video that I intend to mirror and see if I can free it up.

https://www.youtube.com/watch?v=iQ6XgztsfmU

If it is mechanically failed then I will attempt to ID the freehub and buy one. Sounds like a plan.
kevm14
Posts: 15200
Joined: Wed Oct 23, 2013 10:28 pm

Re: Trek 7000SHX freehub sticking

Post by kevm14 »

This is my axle. Hopefully I don't need new bearings as that is just another thing to order and wait for. They may be 1/4".
20210918_115125.jpg

I don't think the axle bearings have anything to do with my freehub issues. I think the issue is entirely within the freehub and has to do with the pawls. I guess it could be rusted in there and soaking in mineral spirits won't fix an issue like that. We'll see. Still need to remove it so I can get a part number and order the right thing.

I ordered:
Finish Line 1-Step Bicycle Chain Cleaner & Lubricant 4oz Squeeze Bottle

Finish Line Premium Grease made with Teflon Fluoropolymer, 3.5 Ounce

Park Tool SR-12.2 Sprocket Remover/Chain Whip for 7- to 12-Speed Bicycle Cassettes

Park Tool FR-5.2G Cassette Lockring Tool with Guide Pin 5 mm

Dumonde Tech Freehub Oil One Color, 1 oz.

About $72 into that. The freehub could be quite cheap but want to see if I can free up mine first.
kevm14
Posts: 15200
Joined: Wed Oct 23, 2013 10:28 pm

Re: Trek 7000SHX freehub sticking

Post by kevm14 »

kevm14
Posts: 15200
Joined: Wed Oct 23, 2013 10:28 pm

Re: Trek 7000SHX freehub sticking

Post by kevm14 »

https://youtu.be/Jrd5XAQfgaA

Exactly my situation except I won't have to file the spacer. My rear gears are separate so no rivets. Looks like it will work just fine.
kevm14
Posts: 15200
Joined: Wed Oct 23, 2013 10:28 pm

Re: Trek 7000SHX freehub sticking

Post by kevm14 »

Teaser.
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Looks like a perfect fit.
kevm14
Posts: 15200
Joined: Wed Oct 23, 2013 10:28 pm

Re: Trek 7000SHX freehub sticking

Post by kevm14 »

The exciting conclusion.

https://youtu.be/ZyqLAGbGXRc

It works!
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